Date: 08/30/06 (PHP Community)    Keywords: no keywords

Hey everybody -

I know what the & operator does - it makes a variable passed by reference. So when you do

function (&$arg) {
    $arg = !$arg;
}

function foo(&$arg) {
    $arg++;
}

function & ($arg) {
    //statements
}

Source: http://community.livejournal.com/php/490217.html